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Each time I believe I've 'seen it all' something comes
across my desk which rattles my brain in a big way. I'm looking at three calculations for a grid, one of the remote area, the other two are shifted one sprinkler to the East, and one to the West. Top of riser values: RA 1663.44 gpm @ 106.107 psi East 1653.71 gpm @ 106.113 psi West 1609.12 gpm @ 97.934 psi I don't believe I've ever seen a peak of a single sprinkler generate a pressure difference of almost 9 psi (RA to West) I've checked all the obvious reasons - modified pipe sizes or lengths, differing flows from sprinklers - and I don't see anything which would cause the peaking results for the West shift I'm open to any suggestions. Color me baffled. sincerely, Ken Wagoner, SET
Parsley Consulting 3002 Younger Drive Harrisonville, Missouri 64701-3909 Phone: (760) 745-6181 Visit the website |
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